Test EXPLAIN (FORMAT JSON) ... XMLTABLE
Also, add an alias to the XMLTABLE expression in an existing test. This covers some code in explain.c that wasn't previously covered. I patched xml_2.out blindly :-( Discussion: https://postgr.es/m/202401181146.fuoeskfzriq7@alvherre.pgsql
This commit is contained in:
Alvaro Herrera
parent
b0f0a9432d
commit
752533d40f
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@ -1549,19 +1549,60 @@ SELECT xmltable.* FROM xmldata, LATERAL xmltable('/ROWS/ROW[COUNTRY_NAME="Japan"
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(1 row)
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EXPLAIN (VERBOSE, COSTS OFF)
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SELECT xmltable.* FROM xmldata, LATERAL xmltable('/ROWS/ROW[COUNTRY_NAME="Japan" or COUNTRY_NAME="India"]' PASSING data COLUMNS "COUNTRY_NAME" text, "REGION_ID" int) WHERE "COUNTRY_NAME" = 'Japan';
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SELECT f.* FROM xmldata, LATERAL xmltable('/ROWS/ROW[COUNTRY_NAME="Japan" or COUNTRY_NAME="India"]' PASSING data COLUMNS "COUNTRY_NAME" text, "REGION_ID" int) AS f WHERE "COUNTRY_NAME" = 'Japan';
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QUERY PLAN
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----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
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Nested Loop
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Output: "xmltable"."COUNTRY_NAME", "xmltable"."REGION_ID"
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Output: f."COUNTRY_NAME", f."REGION_ID"
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-> Seq Scan on public.xmldata
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Output: xmldata.data
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-> Table Function Scan on "xmltable"
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Output: "xmltable"."COUNTRY_NAME", "xmltable"."REGION_ID"
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-> Table Function Scan on "xmltable" f
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Output: f."COUNTRY_NAME", f."REGION_ID"
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Table Function Call: XMLTABLE(('/ROWS/ROW[COUNTRY_NAME="Japan" or COUNTRY_NAME="India"]'::text) PASSING (xmldata.data) COLUMNS "COUNTRY_NAME" text, "REGION_ID" integer)
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Filter: ("xmltable"."COUNTRY_NAME" = 'Japan'::text)
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Filter: (f."COUNTRY_NAME" = 'Japan'::text)
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(8 rows)
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EXPLAIN (VERBOSE, FORMAT JSON, COSTS OFF)
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SELECT f.* FROM xmldata, LATERAL xmltable('/ROWS/ROW[COUNTRY_NAME="Japan" or COUNTRY_NAME="India"]' PASSING data COLUMNS "COUNTRY_NAME" text, "REGION_ID" int) AS f WHERE "COUNTRY_NAME" = 'Japan';
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QUERY PLAN
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-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
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[ +
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{ +
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"Plan": { +
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"Node Type": "Nested Loop", +
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"Parallel Aware": false, +
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"Async Capable": false, +
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"Join Type": "Inner", +
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"Output": ["f.\"COUNTRY_NAME\"", "f.\"REGION_ID\""], +
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"Inner Unique": false, +
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"Plans": [ +
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{ +
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"Node Type": "Seq Scan", +
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"Parent Relationship": "Outer", +
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"Parallel Aware": false, +
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"Async Capable": false, +
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"Relation Name": "xmldata", +
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"Schema": "public", +
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"Alias": "xmldata", +
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"Output": ["xmldata.data"] +
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}, +
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{ +
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"Node Type": "Table Function Scan", +
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"Parent Relationship": "Inner", +
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"Parallel Aware": false, +
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"Async Capable": false, +
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"Table Function Name": "xmltable", +
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"Alias": "f", +
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"Output": ["f.\"COUNTRY_NAME\"", "f.\"REGION_ID\""], +
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"Table Function Call": "XMLTABLE(('/ROWS/ROW[COUNTRY_NAME=\"Japan\" or COUNTRY_NAME=\"India\"]'::text) PASSING (xmldata.data) COLUMNS \"COUNTRY_NAME\" text, \"REGION_ID\" integer)",+
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"Filter": "(f.\"COUNTRY_NAME\" = 'Japan'::text)" +
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} +
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] +
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} +
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} +
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]
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(1 row)
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-- should to work with more data
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INSERT INTO xmldata VALUES('<ROWS>
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<ROW id="10">
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@ -1174,19 +1174,60 @@ SELECT xmltable.* FROM xmldata, LATERAL xmltable('/ROWS/ROW[COUNTRY_NAME="Japan"
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(0 rows)
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EXPLAIN (VERBOSE, COSTS OFF)
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SELECT xmltable.* FROM xmldata, LATERAL xmltable('/ROWS/ROW[COUNTRY_NAME="Japan" or COUNTRY_NAME="India"]' PASSING data COLUMNS "COUNTRY_NAME" text, "REGION_ID" int) WHERE "COUNTRY_NAME" = 'Japan';
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SELECT f.* FROM xmldata, LATERAL xmltable('/ROWS/ROW[COUNTRY_NAME="Japan" or COUNTRY_NAME="India"]' PASSING data COLUMNS "COUNTRY_NAME" text, "REGION_ID" int) AS f WHERE "COUNTRY_NAME" = 'Japan';
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QUERY PLAN
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----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
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Nested Loop
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Output: "xmltable"."COUNTRY_NAME", "xmltable"."REGION_ID"
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Output: f."COUNTRY_NAME", f."REGION_ID"
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-> Seq Scan on public.xmldata
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Output: xmldata.data
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-> Table Function Scan on "xmltable"
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Output: "xmltable"."COUNTRY_NAME", "xmltable"."REGION_ID"
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-> Table Function Scan on "xmltable" f
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Output: f."COUNTRY_NAME", f."REGION_ID"
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Table Function Call: XMLTABLE(('/ROWS/ROW[COUNTRY_NAME="Japan" or COUNTRY_NAME="India"]'::text) PASSING (xmldata.data) COLUMNS "COUNTRY_NAME" text, "REGION_ID" integer)
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Filter: ("xmltable"."COUNTRY_NAME" = 'Japan'::text)
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Filter: (f."COUNTRY_NAME" = 'Japan'::text)
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(8 rows)
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EXPLAIN (VERBOSE, FORMAT JSON, COSTS OFF)
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SELECT f.* FROM xmldata, LATERAL xmltable('/ROWS/ROW[COUNTRY_NAME="Japan" or COUNTRY_NAME="India"]' PASSING data COLUMNS "COUNTRY_NAME" text, "REGION_ID" int) AS f WHERE "COUNTRY_NAME" = 'Japan';
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QUERY PLAN
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-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
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[ +
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{ +
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"Plan": { +
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"Node Type": "Nested Loop", +
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"Parallel Aware": false, +
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"Async Capable": false, +
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"Join Type": "Inner", +
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"Output": ["f.\"COUNTRY_NAME\"", "f.\"REGION_ID\""], +
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"Inner Unique": false, +
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"Plans": [ +
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{ +
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"Node Type": "Seq Scan", +
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"Parent Relationship": "Outer", +
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"Parallel Aware": false, +
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"Async Capable": false, +
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"Relation Name": "xmldata", +
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"Schema": "public", +
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"Alias": "xmldata", +
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"Output": ["xmldata.data"] +
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}, +
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{ +
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"Node Type": "Table Function Scan", +
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"Parent Relationship": "Inner", +
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"Parallel Aware": false, +
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"Async Capable": false, +
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"Table Function Name": "xmltable", +
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"Alias": "f", +
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"Output": ["f.\"COUNTRY_NAME\"", "f.\"REGION_ID\""], +
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"Table Function Call": "XMLTABLE(('/ROWS/ROW[COUNTRY_NAME=\"Japan\" or COUNTRY_NAME=\"India\"]'::text) PASSING (xmldata.data) COLUMNS \"COUNTRY_NAME\" text, \"REGION_ID\" integer)",+
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"Filter": "(f.\"COUNTRY_NAME\" = 'Japan'::text)" +
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} +
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] +
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} +
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} +
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]
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(1 row)
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-- should to work with more data
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INSERT INTO xmldata VALUES('<ROWS>
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<ROW id="10">
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@ -1529,19 +1529,60 @@ SELECT xmltable.* FROM xmldata, LATERAL xmltable('/ROWS/ROW[COUNTRY_NAME="Japan"
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(1 row)
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EXPLAIN (VERBOSE, COSTS OFF)
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SELECT xmltable.* FROM xmldata, LATERAL xmltable('/ROWS/ROW[COUNTRY_NAME="Japan" or COUNTRY_NAME="India"]' PASSING data COLUMNS "COUNTRY_NAME" text, "REGION_ID" int) WHERE "COUNTRY_NAME" = 'Japan';
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SELECT f.* FROM xmldata, LATERAL xmltable('/ROWS/ROW[COUNTRY_NAME="Japan" or COUNTRY_NAME="India"]' PASSING data COLUMNS "COUNTRY_NAME" text, "REGION_ID" int) AS f WHERE "COUNTRY_NAME" = 'Japan';
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QUERY PLAN
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----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
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Nested Loop
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Output: "xmltable"."COUNTRY_NAME", "xmltable"."REGION_ID"
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Output: f."COUNTRY_NAME", f."REGION_ID"
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-> Seq Scan on public.xmldata
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Output: xmldata.data
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-> Table Function Scan on "xmltable"
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Output: "xmltable"."COUNTRY_NAME", "xmltable"."REGION_ID"
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-> Table Function Scan on "xmltable" f
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Output: f."COUNTRY_NAME", f."REGION_ID"
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Table Function Call: XMLTABLE(('/ROWS/ROW[COUNTRY_NAME="Japan" or COUNTRY_NAME="India"]'::text) PASSING (xmldata.data) COLUMNS "COUNTRY_NAME" text, "REGION_ID" integer)
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Filter: ("xmltable"."COUNTRY_NAME" = 'Japan'::text)
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Filter: (f."COUNTRY_NAME" = 'Japan'::text)
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(8 rows)
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EXPLAIN (VERBOSE, FORMAT JSON, COSTS OFF)
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SELECT f.* FROM xmldata, LATERAL xmltable('/ROWS/ROW[COUNTRY_NAME="Japan" or COUNTRY_NAME="India"]' PASSING data COLUMNS "COUNTRY_NAME" text, "REGION_ID" int) AS f WHERE "COUNTRY_NAME" = 'Japan';
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QUERY PLAN
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-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
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[ +
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{ +
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"Plan": { +
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"Node Type": "Nested Loop", +
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"Parallel Aware": false, +
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"Async Capable": false, +
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"Join Type": "Inner", +
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"Output": ["f.\"COUNTRY_NAME\"", "f.\"REGION_ID\""], +
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"Inner Unique": false, +
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"Plans": [ +
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{ +
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"Node Type": "Seq Scan", +
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"Parent Relationship": "Outer", +
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"Parallel Aware": false, +
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"Async Capable": false, +
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"Relation Name": "xmldata", +
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"Schema": "public", +
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"Alias": "xmldata", +
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"Output": ["xmldata.data"] +
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}, +
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{ +
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"Node Type": "Table Function Scan", +
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"Parent Relationship": "Inner", +
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"Parallel Aware": false, +
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"Async Capable": false, +
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"Table Function Name": "xmltable", +
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"Alias": "f", +
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"Output": ["f.\"COUNTRY_NAME\"", "f.\"REGION_ID\""], +
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"Table Function Call": "XMLTABLE(('/ROWS/ROW[COUNTRY_NAME=\"Japan\" or COUNTRY_NAME=\"India\"]'::text) PASSING (xmldata.data) COLUMNS \"COUNTRY_NAME\" text, \"REGION_ID\" integer)",+
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"Filter": "(f.\"COUNTRY_NAME\" = 'Japan'::text)" +
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} +
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] +
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} +
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} +
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]
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(1 row)
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-- should to work with more data
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INSERT INTO xmldata VALUES('<ROWS>
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<ROW id="10">
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@ -505,7 +505,10 @@ SELECT xmltable.*
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SELECT xmltable.* FROM xmldata, LATERAL xmltable('/ROWS/ROW[COUNTRY_NAME="Japan" or COUNTRY_NAME="India"]' PASSING data COLUMNS "COUNTRY_NAME" text, "REGION_ID" int) WHERE "COUNTRY_NAME" = 'Japan';
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EXPLAIN (VERBOSE, COSTS OFF)
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SELECT xmltable.* FROM xmldata, LATERAL xmltable('/ROWS/ROW[COUNTRY_NAME="Japan" or COUNTRY_NAME="India"]' PASSING data COLUMNS "COUNTRY_NAME" text, "REGION_ID" int) WHERE "COUNTRY_NAME" = 'Japan';
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SELECT f.* FROM xmldata, LATERAL xmltable('/ROWS/ROW[COUNTRY_NAME="Japan" or COUNTRY_NAME="India"]' PASSING data COLUMNS "COUNTRY_NAME" text, "REGION_ID" int) AS f WHERE "COUNTRY_NAME" = 'Japan';
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EXPLAIN (VERBOSE, FORMAT JSON, COSTS OFF)
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SELECT f.* FROM xmldata, LATERAL xmltable('/ROWS/ROW[COUNTRY_NAME="Japan" or COUNTRY_NAME="India"]' PASSING data COLUMNS "COUNTRY_NAME" text, "REGION_ID" int) AS f WHERE "COUNTRY_NAME" = 'Japan';
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-- should to work with more data
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INSERT INTO xmldata VALUES('<ROWS>
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